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Voltage Stabilizer
Introduction:
The Circuit of an Automatic Voltage Stabilizer (AVS) described in this fact very simple in Design and will give a good Protection to the Electronic Gadget that is Connected to it. It will Particularly Guard them against the Dangerous high Voltages and also from the Possible Brownouts (low Voltages). The output will stay in the range of 200VAC – 255VAC with an input Voltage of 175VAC – 280VAC.
How does a Voltage Stabilizer Work:
The Circuit of a Voltage Stabilizer Consists of a Voltage Sensor. It is Configured to Detect the Rise or Fall of the AC Mains Voltage to Dangerous Levels. As soon it Senses a Risky input Voltage, it immediately Energizes the Relays connected to it. These Relays in Turn Swaps and Switches the appropriate Winding Terminals of the auto Transformer to Correct and Stabilize the output Voltage.
What are the Parts Required to Build and Construction details:
Parts Required: You will require the following parts for the Circuit:
Resistor ¼ watt, CFR R1 = 2 K 7,
Preset P1 = 10 K Linear,
Transistor T1 = BC 547,
Zener Diode Z1 = 3 V / 400 mW,
Diode D1, D2 = 1N4007,
Capacitor = 220uF / 25 V
Relay RL1 = 12 V / DPDT mini (double pole, double throw),
Transformer T1 = 12 – 0 – 12 V / 5 amps.
T2 = 0 – 12 volts / 500 mA (input as per country specifications)
General purpose board = 3” by 3”
Construction Clues:
With the help of the given Circuit Schematic the Construction of this simple AVS Circuit may be Completed through the Following Easy steps:
In the piece of general purpose board:
insert the Transistor, solder and cut its Leads. Proceed by Fixing and Soldering the Rest of the associated Parts with the Relay around the Transistor.
Finally connect the primary and the secondary Wires of the Transformer to the Relay Contacts as shown in the Diagram. Construction details of this automatic Voltage Stabilizer Circuit.
Circuit Description:
Automatic Voltage Stabilizer Circuit Diagram. Referring to the figure, we see that Transistor T1 Forms the main active part of the Entire Circuit.
The Voltage from smaller Transformer is Rectified by D1 and Filtered by C1 to Produce the required Operating Power for the Control Circuit Comprising of Transistor T1, Preset P1, Zener Diode Z1 and the DPDT relay.The sensing Voltage. Because this Voltage will vary Proportionately with the applied input Voltage Variations.
How do you use automatic Voltage Stabilizer:
It is an Electrical appliance that Feeds Constant Voltage to a Load during over and under Voltage Conditions. This Device Detects these Voltage conditions and Correspondingly brings the Voltage to desired range. Voltage Stabilizers provide a means to Regulate the supply Voltage to the Load.
How to Install a Voltage Stabilizer for Home:
Check the Housing, Ammeter, Switch, Indicator Lamp, Button and Wiring Terminals of Voltage Stabilizer. Connect the Voltage Stabilizer input Terminal to Switch Board and install a suitable fuse on the Switch Board, so as to ensure Electrical safety.
Do I Need a Voltage Stabilizer:
Automatic Voltage Stabilizers have now become basic Need of every Household. It Protects your home appliances from damage and provides a long life. So, you must install a good Voltage Stabilizer Depending upon the Power Consumption and KVA rating of your entire house.
How do you test a Voltage Stabilizer:
Hook the Negative side of the Battery to the Stabilizer case, as you indicated, the Positive side of the Battery to the input Terminal of the Stabilizer. Now with the Multimeter set to the appropriate DC volt Range, place one of the Meter Probes on the Stabilizer Case, and the other to the Output Terminal.
Why do we use Voltage Stabilizer:
A Voltage Stabilizer is an electrical appliance used to feed constant Voltage current to electrical gadgets like ACs and computers, and protects them from damage due to Voltage fluctuations.
Wishing you all the best,
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